Guy, Close serial numbers to your gun in the SV data base are all SV guns, shipped in March & April 1946. Somebody went to lunch early one day and your gun got by without the V stamp. SV guns came in dull blue finish as well as high polish blue. S&Ws are famous for having little things that don't compute, one of which is where are all the VS stamped guns? I've seen maybe 3 or 4 in 60 yrs. Ed.